1311041322 has 32 divisors (see below), whose sum is σ = 2915827200. Its totient is φ = 436653504.

The previous prime is 1311041321. The next prime is 1311041339. The reversal of 1311041322 is 2231401131.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 1311041295 and 1311041304.

It is not an unprimeable number, because it can be changed into a prime (1311041321) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 60679 + ... + 79397.

It is an arithmetic number, because the mean of its divisors is an integer number (91119600).

Almost surely, 2^1311041322 is an apocalyptic number.

1311041322 is an abundant number, since it is smaller than the sum of its proper divisors (1604785878).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1311041322 is a wasteful number, since it uses less digits than its factorization.

1311041322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20027 (or 20021 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 1311041322 is about 36208.3045999119. The cubic root of 1311041322 is about 1094.4740277477.

Adding to 1311041322 its reverse (2231401131), we get a palindrome (3542442453).

The spelling of 1311041322 in words is "one billion, three hundred eleven million, forty-one thousand, three hundred twenty-two".